Drainage fitting



Jan. 27, 1953 Filed Jan. 23, 1950 7 m m N0 0 M r. a N m n 4 E on J T m rl/V/ 422, a n 0 w 1 ATTORNEYS Jam. 27, 1953 N. soosay DRAINAGE FIT-TING 2 SHEETS-SHEET 2 Fild Jan. 23, 1950 INVENT ifwzz ATTORNEYS Patented Jan. 27, 1953 DRAINAGE Frr'rnvo.

Lawrence N. Boosey, Talladega, Ala., assignor to Munro-Van Helms Company, a corporation of Alabama Application January 23, 1950, Serial No. 140,074

This invention relates to a drainage fitting and especially to one such as isemployed with a lead seepage pan in shower stalls to convey waste to a drainage system, and has forits principal object the provision of an improved fitting of the character designated which shall be effective to intercept and carry away any seepage which may occur in the floor of, such a stall.

A further object of my invention is to provide a drainage fitting, which shall include a body member; a seepage pan, a clamping ring bearing against the seepage pan, and a pressure plate, together with improved means for exerting an even pressure on the clamping ring.

A more specific object of my invention is to provide improved means for conveying seepage which may accumulate in thelead seepage pan of 'a' shower stall to a waste conduit.

As is well knownin the art to which my invention relates, difiicultieshave been encountered, especially in public buildings suchas hotels and the like, where shower stalls are installed, to take care of seepage occurring in the cement, or tile floors of such stalls, and prevent it from passing through and damaging ceilings'below the rooms in.which.such stalls are located. It is the usual practice to employ a drainage fitting and a lead seepage pan whichare installed inthe fioor, the pan necessarily having one edge surrounding the drainage fitting. The principal difliculty with suchlan-arrangement'has been found to exist at Fig. 1 is a sectional view of fitting installed in the floor of a shower stall;

Fig. 2 is a plan view of the clamping ring removed from the fitting; r

Fig. 3 is a sectional view of ithe clamping ring taken along line III-III.of Fig. 2; Fig. .4 is a sectional view of a modified fitting;' i"

Fig. 5 is a plan view of the body of the fitting shown in Fig. 4, with other parts removed; and,

Fig. 6 is a partial sectional view similar to Fig.

form of 4 Claims. ((1182-31) 2 4*and showing a furthermodification of my invention. V

Referring now to therdrawings for a. better understanding of my invention, my improved fitting comprises a body portion Ill open at both ends and-adapted to receive a drainage conduit I l at its lower end. The body portion is provided, near its upper end, with an upwardly inclined flange member [2 which defines an annular groove [5 around the body portion with its inner wall l3 vertical and itsouter wall [4 upwardly inclined. The upper endof the body [0 is also provided with a plurality of uniformly spaced.

radial seepagev channels I6 at intervals around;

its entire upper surface.

It is contemplated that the drainage fitting:

will be installed in a floor such as a concrete floor with the flange l2 resting on the concrete. Sur-- rounding the fitting is a lead seepage pan I! having an edge I8 extending down into the recess around the body portionand abutting the vertical wall l3 of the recess.

Fitting over the edge of the seepage pan is a clamping ring [9 which is shaped on its under side to fit snugly into the recess and bear against the seepage pan. The flat upper surface. of the clamping ring projects above the level of the body portion l0 and is provided with uniformly spaced radial seepage channels 2| which align radially with the seepage channels I6 in the body portion l0.

Fitting over the clamping ring is a pressure plate 22 having a substantially fiat bottom surface and a plurality of spaced holes 23 around its periphery for the reception of cap screws 24 which. extend down through the holes 23 into threaded holes 26 in the body portion ill for the purpose of exerting pressure on the clamping ring 19 and to the edge [8 ofthe seepage pan. The pressure plate 22 is also provided with an internally threaded opening 28 for the reception of a drainage head 29 which is threaded to screw into the opening 28 to a depthcorresponding with the. depth of the usual terrazzo or other finish fiooringfill.v V 7 With the form of my invention just described, it will be seen that any seepage which may pass through the finish flooring'3l will be intercepted by the seepage pan I! and drain toward the fitting where it is engaged by the clamping ring Ill.- Due to the multiple point engagement of the pressure plate 22 with the. clamping ring, an even pressure is applied to it through the cap screws 24 so that seepage cannot pass between the ring and the seepage pan, but flows over it through the radial passages 2| in the clamping ring and the passages [6 in the upper end of the body portion to the drainage conduit II. It will also be seen that the radial passages 2| are so positioned that if grout is poured around the fitting in laying the finish flooring 3|, it is not likely to, fiow into and obstruct a sufiicient number of passages to prevent the proper opera.- tion of the fitting.

In Figs. 4 and 5 of the drawing, I show a modified form of my invention which is similar in all respects to that shown in Figs. 1 to 3 inclusive except with respect to the construction of the body portion In accordance with this modification, the upper end 32 of the body portion does not extend as far upwards in relationto the clamping ring I9 as it does in the fitting shown in Figs. 1 to 3, and is made smooth on top. By

doing away with a part of the metal at the upper end of the body portion, I am enabled to, omit the radial drainage passages in the body portion and providev a wider opening to receive seepage from the drainage passages 2| in, the clamping ring l9".

Referring to Fig. 6, I- show a further modification of my invention in which the body portion 50, is provided, at its upper end, with a horizontal flange 4%! which, extends outwardly and then is inclined upwardly at 4'2 and 43. Mounted over the horizontal portion 4|, is a clamping ringhaving an upwardly inclined outer wall 46 which bears against the inner edge of the seepage pan 41'. The upper surface of'the clamping ring 44 is provided with a plurality of drainage channels 48, Mounted over the clamping ring 44 and bearing against it is a pressure. plate 49. Extending down through the pressure plate and through holes provided, inthe clamping ring, are fastening elements in the form of cap screws 52, a previously described, which are screwed into threaded holes 53 in the fitting body 40. Otherwise this modification of my invention is similarto those already described.

From the foregoing it will be apparent that l have devised an improved drainage fitting which issimple and sturdy of construction and One which provides improved means for clamping the inner edge It; of the seepage pan [1, and improved means for conveying seepage from the pan into the drain conduit ll.

While I have shown my invention in but three forms, it will be obvious to those skilled; in the art that is not so limited, but is susceptible o1"; various other changes and modifications, with.- out departing from the spirit thereof, and I desire, therefore, that only such limitations shall be placed thereupon as are specifically set forth in the appended claims.

What I claim is: u

1. In a drainage fitting embodying a body portion with an annular recess around the upper end thereof and a lead seepage panfitting about the body portion with one edgeseated; in the recess, a clamping ring fitting about the body portion in the recess over the seepage" pan and bearing against the pan, said clamping ring; having a substantially flat upper surface with a multiplicity of radially disposed drainage channels in the upper surface thereof, saidbody portion extending upwardly adjacent the'cl'ampingring with atleast a portion of its upper surface spaced substantially below the upper surface of the clamping ring to permit drainage from said drainage channels, a pressure plate having a substantially fiat bottom surface fitting over and bearing against the clamping ring, and clamping means cooperating with the pressure plate and the body portion for exerting pressure on the clamping ring.

2; In a drainage fitting embodying a body portion with an annular recess around the upper end thereof and a lead seepage pan fitting about the body portion with one edge seated in the recess, a clamping ring fitting about the body portion in the recess over the seepage pan and bearing against; the pan, said clamping ring having a substantially fiat upper surface with a multiplicity of radially extending drainage channels in the upper surface thereof, said body having corresponding radially extending drainage channels in the upper end thereof, a pressure plate fitting, over the clamping, ring having a substan-tijally flat bottom surface, and clamping means cooperating with the pressure plate. and the body portion for exerting pressure on the clamping ring.

3. In a drainage fitting embodying a body portion With an annular recess around the upper end thereof and a lead seepage. panfitting about the body portion with one edge. seated in the recess, a clamping ring fitting, about the body portion in the recess over the seepage pan and bearing against the pan, said clamping ring having a. substantially fiatupper surface with a multiplicity of radial drainage passages in the upper surface thereof,v said body portion extending upwardly adjacent the. clamping ring and having radial. drainage channels in alignment, with the channels in the clamping ring, a pressure plate having a substantially fiat bottom surface fitting over and bearing against the clamping, ring, and a plurality of pressure exerting members, extending through the pressure plate into the body portion to exert pressure on the clamping ring.

4. In a drainage fitting embodying a body portion with an annular recess around the upper end thereof and a lead seepage pan fitting, about the body portion with one edge seated in the recess, a clamping ring fitting about the body portion in the recess over the seepage pan and- LAWRENCE N. BOOS'EY;

REFERENCESv CITED The, following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,963,300 Fleming June- 19,1934 1,973,304 Boosey- Sept. 11, 1934 1,999,277 Boosey Apr. 30, 1935 2,101,978 Boosey Dec. 14,1937 

